Europe's royalty turns out for a dinner to celebrate Denmark Queen Margrethe's 40 years on the throne at Christiansborg Palace Chapel on Jan. 15, 2012, in Copenhagen. From left are King Harald V of Norway, Queen Anne-Marie of Greece, Crown Prince Haakon of Norway and Crown Prince Frederik of Denmark.

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Danish Prince Consort Henrik, left, delivers a speech marking the 40th jubilee of his wife Queen Margrethe at a gala dinner in Christiansborg Castle on Jan. 15, 2012, in Copenhagen.

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Queen Margarethe II of Denmark and her consort, Prince Henrik of Denmark, attend a gala dinner marking her 40 years on the throne at Christiansborg Palace Chapel on Jan. 15, 2012, in Copenhagen.

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Sweden's Queen Silvia attends a gala dinner to celebrate Queen Margrethe's 40 years on the throne of Denmark at Christiansborg Palace Chapel on Jan. 15, 2012, in Copenhagen.

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Crown Princess Marie-Chantal of Greece attends a gala dinner to celebrate Queen Margrethe's 40 years on the throne of Denmark at Christiansborg Palace Chapel on Jan. 15, 2012, in Copenhagen.

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Crown Princess Mary of Denmark attends a gala dinner to celebrate Queen Margrethe's 40 years on the throne of Denmark at Christiansborg Palace Chapel on Jan. 15, 2012, in Copenhagen.

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Crown Princess Mette-Marit of Norway attends a gala dinner to celebrate Queen Margrethe's 40 years on the throne of Denmark at Christiansborg Palace Chapel on Jan. 15, 2012, in Copenhagen.

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Queen Sonja of Norway attends a gala dinner to celebrate Queen Margrethe's 40 years on the throne of Denmark at Christiansborg Palace Chapel on Jan. 15, 2012, in Copenhagen.

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Prince Joachim of Denmark arrives at a gala dinner to celebrate his mother's 40 years on the throne of Denmark at Christiansborg Palace Chapel on Jan. 15, 2012, in Copenhagen.

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Crown Prince Frederik and Crown Princess Mary arrive at a gala dinner to celebrate his mother's 40 years on the throne of Denmark at Christiansborg Palace Chapel on Jan. 15, 2012, in Copenhagen.

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Crown Prince Pavlos and Crown Princess Marie-Chantal of Greece attend a gala dinner to celebrate Queen Margrethe II of Denmark's 40 years on the throne at Christiansborg Palace Chapel on Jan. 15, 2012, in Copenhagen.

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Danish Queen Margrethe II arrives with Prince Consort Henrik for the commemoration service in the church in Christiansborg Castle, in Copenhagen on Jan. 15, 2012, to mark the 40th anniversary of her coronation.

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A general view of the church in Christiansborg Castle, in Copenhagen, on Jan. 15, 2012, during a service to mark to the 40th anniversary of Queen Margrethe's coronation.

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Prince Christian of Denmark, right, attends a service to celebrate the 40th anniversary jubilee of his grandmother, Queen Margrethe II of Denmark, at Christiansborg Palace on Jan. 15, 2012.

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Crown Prince Frederik and Princess Mary of Denmark and their children attend a service to celebrate Queen Margrethe II of Denmark's 40 years on the throne at at Christiansborg Palace on Jan. 15, 2012.

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A general view of the service a service to celebrate Queen Margrethe II of Denmark's 40 years on the throne atChristiansborg Palace on Jan. 15, 2012.

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Queen Margarethe II of Denmark and Prince Henrik of Denmark make an appearance on the balcony to celebrate the Queen's 40 years on the throne at Amalienborg Royal Palace on Jan. 15, 2012, in Copenhagen.

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From left, Princess Marie of Denmark, Prince Joachim of Denmark, Princess Mary of Denmark and Crown Prince Frederik of Denmark and their families make an appearance on the balcony to celebrate Queen Margrethe's 40 years on the throne at Amalienborg Royal Palace on Jan. 15, 2012, in Copenhagen.

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Danish Queen Margrethe and her husband Prince Henrik look at the gift (the carpet seen on the floor) from the Danish government and parliament on Jan. 15, 2012 in Christian IX's chambers at at Christiansborg Palace in Copenhagen.

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Danish Queen Margrethe and her husband Prince Henrik leave on Jan. 14, 2012, after a gala performance at the Royal Concert Hall in Copenhagen to mark her 40 years on the throne.

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Danish Queen Margrethe thanks the artists late on Jan. 14, 2012 after a gala performance at the Royal Concert Hall in Copenhagen to mark her 40 years on the throne.

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Crown Prince Frederik and Crown Princess Mary of Denmark leave a gala performance at the Royal Concert Hall in Copenhagen to celebrate his mother's 40 years on the throne.

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Princess Benedikte of Denmark arrives Jan. 14, 2012, for a gala performance at the Royal Concert Hall to celebrate the 40th jubilee of her sister, Queen Margrethe II.

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Danish Queen Margrethe waves to guests at Copenhagen City Hall on Jan. 14, 2012, at one of the many weekend events to celebrate the 40th anniversary of her ascension to the throne.